Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://zenodo.org/api/iiif/record:969575/manifest",
    "isFetching": false
  },
  "viewer": null,
  "window": {
    "canvasId": "https://zenodo.org/api/iiif/record:969575/canvas/big_64415.jpg",
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4cd600df-124c-434b-80cd-0c87d077b03d",
      "cw-c5e59966-6c0e-43be-b299-85d52b04278c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": true,
    "id": "window-dc6d546b-38df-4b5e-8b34-4f546d1ae874",
    "manifestId": "https://zenodo.org/api/iiif/record:969575/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c5e59966-6c0e-43be-b299-85d52b04278c",
    "thumbnailNavigationPosition": "far-right",
    "visibleCanvases": []
  }
}